2cupsnatural or Dutch process cocoaI use Hershey's
1tbspinstant espresso powder
6large eggs
2tbsppure vanilla extract
2cupsall purpose flour
1tspkosher saltI use Diamond Crystal
Instructions
Preheat the oven to 350 degrees. Line a 9-by-13-inch baking pan with aluminum foil and spray with nonstick cooking oil spray.
Melt the butter in a large heat-proof glass bowl in the microwave. This can be done in a saucepan over medium heat as well. Remove from the heat and add the sugars. Whisk thoroughly.
Add the cocoa powder and espresso powder, whisking to incorporate completely.
Add the vanilla extract. Then add the eggs and whisk in thoroughly. If you're a stickler, you can crack the eggs into a separate bowl and then add to the chocolate mixture; this gives the added assurance that no shells get into your brownies. I, however, like to live on the edge and hate to wash dishes so do as I do, not as I say at your own peril.
Switch to a spatula and fold in the flour and salt until just combined; do not overmix.
Spread the batter evenly in the pan, making sure the corners are filled. Bake for 40 to 45 minutes or until a crust forms on the surface and a toothpick inserted into the center comes out mostly clean. Transfer the pan to a wire rack; cool completely before cutting the brownies.